Air conditioning apparatus



June R. M. GIRSTENBREI 2,204,732

AIR CONDITIONING APPARATUS Filed May 18, 1939 2 Sheets-Sheet 1 I I I I 1 I r I I 1 1 I 1 I I I I I I 1 I 1 II 7 J L/ i Inventor A ttomeys June 18, 1940.

R. M. GIRSTENBREI 2,204,732

AIR CONDITIONING APPARATUS Filed llay 18, 1939 2 Sheets-Sheet 2 Inventor Attorneys Patented June 18, 1940 2,204,732

UNITED STATES PATENT OFFICE AIR. CONDITIONING APPARATUS Roy M. Girstenbrei, Madison, Wis. Application May 18, 1939, Serial No. 274,453

1 Claim. (Cl. 237-53) This invention relates to new and useful imwhich extends the tube l6, through the cellar provements in air conditioning apparatus, and or basement wall In to the outside atmosphere. more particularly to simplified apparatus espe- A screen i'l also covers the bottom of the box cially adapted for use in small homes and busil4 at which point the corresponding pipe l2 con- 5 ness establishments. nects. 5

The principal object of the present invention As can be seen in Figure l, the upper portion is to provide an air conditioning apparatus which of the shell 5 has the motor I8 mounted thereon can be readily installed at a nominal cost. and the shaft l9 therefrom extends downwardly Another important object of the invention is into the shell 5 and is equipped with the suction 10 to provide an air conditioning apparatus in which fan 20 for causing a forced draft in the conduit the parts are of simple construction and capable system. of being repaired and replaced at low cost. As shown in Figure 4, the position of the fan These and various other important objects and can be changed. In this form of the invention a advantages of the invention will become apparent Well 2| is formed in the floor 22, below the hot to the reader of the following specification. air furnace shell and in this is mounted the 15 In the drawings: vertical shaft carrying the suction fan 26, and Figure 1 represents a vertical sectional view on this shaft is the pulley 21 over which the pulthrough the lower portion of a building showing ley belt 28 from the pulley 29 on the armature the air conditioning means installed. shaft of the motor 30 is trained. The rest of the 20 Figure 2 is a fragmentary elevational view looksystem is exactly in accordance with that shown 20 ing at one of the clean-outs, in Figure l and described as above.

Figure 3 is a side elevational view of the air As can be seen in Figure 1 the portion a of inlet and filtering box. each of the conduits, and the corresponding por- Figure 4 is a vertical sectional view through tion in the modified form in Figure 4 is slightly 25 the lower portion of a building showing a modiinclined at the rate of approximately one-quarter fled, form of apparatus. of an inch for a distance of not less than ten Figure 5 represents a fragmentary vertical feet. These portions a are to be underground at sectional view through the air inlet and filtering a depth of at least two feet as also suggested in unit and a portion of the building. the drawings. 0 30 Figure 6 is a section on the line 6--6 of Fig-- While the foregoing specification sets forth the ure 4. invention is specific terms, it is to be understood Referring to the drawings wherein like nuthat numerous changes in the shape, size and merals designate like parts, it can be seen that materials may be resorted to without departing the numeral 5 represents the shell of a hot air from the spirit and scope of the invention as furnace from the top of which extend the hot air claimed hereinafter, ducts 6 to locations in the building generally re- Having described the invention, what is ferred to by numeral 1. Numeral 8 denotes the claimed as new first floor supported by the joists 9 a d num In combination with the shell of a hot air furrepresents the Side Walls Of the basement. nace having an air outlet a basement floor upon 40 The basement o is denoted b numeral H and which the shell sets, a vertically extending inlet has the conduits extending downwardly therehaving an inlet at, its upper end and having through as at l3 from beneat the hot its lower end extending downwardly through the nace shell 5, to slope downward y as at a a basement floor to a point beneath the same, said distance of approximately ten feet or more, and pipe being disposed laterally in an inclined posithen t extend upwardly through the floor ll tion toward a point beneath the shell and proa a and up along t d walls to the vided with an upwardly extending terminal portake and filtering boxes I 4. Each of these P p tion opening through the floor and in the lower l2 just above th fl II has a l a u n portion of the shell, said vertical pipe having a ing lia and a slide |6a carried in a suitable guide 1 in the 1ower portion thereof imme- 0 structure H; the slide l6" serving as a closure diately above the basement floo and h 0 the pening. jacent endof the inclined laterall dis osed r- Each of the boxes H has one side open, and of said pipe y p Do this side is normally closed by the mesh sheet ROY M. GIRSTENBREI. l5. The opposite side has a small opening from 

